I used Google Translate on the first paragraph. Not too bad.AA5JD John

What is MAB?

MAB is the acronym for Magic Antenna Box, or Magic Box of Antennas. MAB
is both an intuitive and sophisticated control control for easy-to-use
antennas and transceivers with three modes of operation, such as Normal
Antenna Switch, such as SO2R for antennas and Stack Match. It
is based on two microprocessors capable of controlling up to four
transceivers and sixteen antennas and / or band filters, manually, where
the user is the one who handles the controller or automatically, where
is the transceiver or transceivers who controls it. All MAB software is fully upgradeable by the user in a simple way. MAB allows to use boxes of relays of 12 or of 5 Volts, selectable internally. They can also use relays at 24V but need external power from this voltage in addition to 13.8 Volts from their normal supply. MAB
will activate each of the relays with positive voltage, being the mass
common to all relays so it is possible to use the vast majority of relay
boxes for antennas on the market.